Using android to watch video causes more power consumption.
Reported by
ctqct...@gmail.com,
Oct 20 2017
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Issue descriptionExample URL: Steps to reproduce the problem: 1. Store a 720p video into the android device as /sdcard/Movies/720p.mp4 2. To avoid the network impact, turn the "Plane Mode" on 3. Use Webview to load this mp4 with url "file:///sdcard/Movies/720p.mp4". The start to trace on. What is the expected behavior? What went wrong? We have compared the tracing between M59 and M53, and we found there were much more CPU cost on render threads. So in this case, this senario will cause more power consumption than we expect. Did this work before? N/A Is it a problem with Flash or HTML5? N/A Does this work in other browsers? N/A Chrome version: 59.0.3048.0 Channel: n/a OS Version: 8.0 Flash Version: Contents of chrome://gpu:
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Oct 20 2017
This is due to moving away from Android's media playback stack. In our testing power is not measurably different and is even better with some codecs. Did you actually run power testing or did you just notice that more CPU is being used?
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Nov 1 2017
ping reporter@, can you answer c#2?
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Nov 28 2017
At first we tested this scense with Ammeter and found the M59 is higher than M53. Then we analysis the trace and found there is more CPU being used.
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Dec 6 2017
dale@, is more CPU being used an expected and acceptable situation?
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Dec 6 2017
Yes more CPU usage is expected, but we didn't measure significant power differences in local tests. @ctqctq99, what is the percentage difference in power usage you're seeing?
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Jan 4 2018
no response from reporter@ for 1 month. close this bug. |
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Comment 1 by mlamouri@chromium.org
, Oct 20 2017